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\title{\zihao{0}\hei\vspace*{-2cm} 天~文~数~据~实~战\\{\vspace*{-1.2cm}\zihao{-2} Astronomical Data in Action}}
\author{\guli 何勃亮\hspace{1em} \kai 编著}
\date{\vspace*{3cm}}
\maketitle